The second group focused on placing fliers on bus routes and asking drivers if Stephen Ivens' photo looked familiar.

The goal, she said, was to “find clues or a body.”

Bloodhounds tracked Stephen Ivens' scent to the Verdugo Mountains last month but officials acknowledged it could have been from a previous hike and not from the day he was reported missing on May 11.

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Burbank police are being kept aware of any findings, Thea Ivens said, adding that all volunteers were asked to call police or the FBI if they found something.

After Stephen Ivens disappeared from his home in the 1700 block of Scott Road in Burbank, authorities from several law enforcement agencies launched a massive search that took on added urgency because officials said he likely had his department-issued gun and could be a danger to himself.

Authorities have long since called off active, on-the-ground searches, switching instead to a strategy of following up on leads, of which they say there have been few.

“No one is actually looking for him, physically looking,” Thea Ivens said. “How can there be leads if there is no media awareness? How can we find him if no one is looking? That's why I'm doing this.”

She and other family members called a press conference last week to make an emotional plea for the public's help in preventing the case from going cold. They are planning another search effort for Saturday.

Her mother is helping take care of her young child while she holds down a full-time job.